THEME: PHYSIOLOGY OF LIVING THINGS

LEARNING AREA: 1.0 TRANSPORT

1 1.1 Carry out activities to identify the problem that A student is able to: TSTS Understanding the importance of could be faced by multicellular organisms and • identify the problem that • Attributing having a transport system in some explain how the problem is overcome in could be faced by • Comparing and contrasting multicellular organisms multicellular organisms as compared to unicellular multicellular organisms in • Relating (2p + 1p) organisms: obtaining their cellular a) Correlate different sizes of cubes to total requirements and getting rid Noble values surface area / volume (TSA/V) ratio, of their waste products, • Realising that science is a b) Discuss how the (TSA/V) ratio affects the • suggest how the problem is means to understand nature movement of solutes to the interior of cubes, overcome in multicellular • Having critical and c) Relate the outcome of a) and b) to the problem organisms. analytical faced by multicellular organisms in getting cell thinking requirements to the cells in the interior of the • Thinking rationally organisms, d) Suggest ways to improve the movement of solutes to the interior of cubes without changing the size of cubes, e) Explain why there is a need for a transport system in some multicellular organisms.2 1.2 Read text materials and view computer simulations A student is able to: TSTS Synthesising the concept of on circulatory system and discuss the following: • state what a circulatory • Attributing circulatory system a) what is a circulatory system, system is, • Comparing and contrasting (2p + 1p) b) the three components of the circulatory system, • state the three components of • Relating i.e. medium, vessels and pump, circulatory system in humans • Sequencing c) blood and haemolymph as a medium of and animals, transport, • state the medium of transport Noble values d) the composition of human blood, in humans and animals, • Appreciating and practicing e) the function of blood and haemolymph in • state the composition of clean and healthy living transport, human blood, • Having critical and f) the structure of human blood vessels: arteries, • explain the function of blood analytical veins and capillaries, and haemolymph in transport, thinking g) the basic structure and function of the human • describe the structure of • Thinking rationally heart, human blood vessels, h) the circulation of blood in humans in terms of : i. pumping of the heart, • explain how blood is ii. contraction of skeletal muscles around propelled through the human veins, circulatory system, i) the regulatory mechanism of blood pressure. • explain briefly how blood Look at the heart of the fish, chicken and/or cow, pressure is regulated,and note similarities and differences in terms of • compare and contrast thesize, and number of compartments. circulatory systems in theUse schematic diagrams to compare the circulatory following: humans, fish andsystem in the following: humans, fish and amphibians,amphibians. • conceptualise the circulatoryVisualise and draw concept maps on the system in humans.circulatory system in humans.